{"id":987,"date":"2006-02-27T10:08:00","date_gmt":"2006-02-27T09:08:00","guid":{"rendered":"https:\/\/kids.esa.int\/greenland_s_melting_glaciers\/"},"modified":"2026-10-08T00:34:33","modified_gmt":"2026-10-07T22:34:33","slug":"greenland_s_melting_glaciers","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/greenland_s_melting_glaciers\/","title":{"rendered":"Gr\u00f8nlands smeltende gletsjere"},"content":{"rendered":"
\n

P\u00e5 trods af sit navn er Gr\u00f8nland n\u00e6sten fuldst\u00e6ndigt d\u00e6kket af en k\u00e6mpe iskappe. Data fra flere ESA-satellitter tyder imidlertid p\u00e5, at dette hvide t\u00e6ppe smelter hurtigere end forventet.<\/p>\n<\/div>\n

Den seneste unders\u00f8gelse af Gr\u00f8nlands gletsjere bygger p\u00e5 data indsamlet af fire satellitter i kredsl\u00f8b om Jorden mellem 1996 og 2005. ESAs europ\u00e6iske fjernm\u00e5lingssatellitter ERS-1 og ERS-2, ESAs Envisat og Canadas Radarsat-1 er alle udstyret med radarinstrumenter, der kan observere overfladen b\u00e5de dag og nat, selv n\u00e5r der er t\u00e6t skyd\u00e6kke.<\/p>\n

Is\u00e6r var Eric Rignot fra NASAs Jet Propulsion Laboratory og forskeren Pannir Kanagaratnam fra University of Kansas interesserede i at m\u00e5le \u00e6ndringer i h\u00f8jden p\u00e5 den gr\u00f8nlandske indlandsis.<\/p>\n

\"Envisat
Envisat-billede af Rinks Isbrae-gletsjeren, Gr\u00f8nland<\/figcaption><\/figure>\n

Ved at analysere satellitdataene fandt forskerne ud af, at gletsjerne i det sydlige og centrale Gr\u00f8nland flyder hurtigere mod havet. I takt med klimaopvarmningen er den m\u00e6ngde is, som de afgiver til Atlanterhavet, fordoblet i l\u00f8bet af de sidste 10 \u00e5r. Forskerne beregner, at Gr\u00f8nland bidrager med ca. 0,5 mm om \u00e5ret til den globale stigning i havniveauet p\u00e5 ca. 2,5 mm om \u00e5ret.<\/p>\n

Fremtidige unders\u00f8gelser, der anvender satellitter som Envisat og ERS, vil give vigtige oplysninger om, hvordan isd\u00e6kket og havniveauet udvikler sig p\u00e5 lang sigt.<\/p>\n

Gr\u00f8nland er verdens st\u00f8rste \u00f8. Dens indlandsis d\u00e6kker n\u00e6sten 2 millioner kvadratkilometer og har en gennemsnitlig tykkelse p\u00e5 2,3 km. Hvis al isen smeltede, ville den globale havoverflade stige med op til syv meter.<\/p>","protected":false},"excerpt":{"rendered":"

Despite its name, Greenland is almost entirely covered by a huge sheet of ice. However, data from several ESA satellites suggest that this white blanket is melting faster than expected. […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2006\/02\/envisat_image_of_south_greenland2\/17899607-2-eng-GB\/Envisat_image_of_South_Greenland.jpg","esa_banner_description":"Envisat image of South Greenland","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/02\/Envisat_image_of_South_Greenland2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[42,10,66],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-987","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-water-world"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/987","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=987"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/987\/revisions"}],"predecessor-version":[{"id":4779,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/987\/revisions\/4779"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=987"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=987"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=987"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=987"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=987"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=987"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=987"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}